DelphiADOConnection连接

DelphiADOConnection连接
unit Unit_DM;
interface
uses
SysUtils, Classes, DB, ADODB,inifiles,windows,forms,controls;
type
TDM = class(TDataModule)
ADOConn: TADOConnection;
DS_BomFind: TDataSource;
Qry_BomFind: TADOQuery;
procedure DataModuleCreate(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
userIdStr,passwordStr,ServerNameStr,dataBaseNameStr,inifilePath:string;
end;
var
DM: TDM;
implementation
{$R *.dfm}
procedure TDM.DataModuleCreate(Sender: TObject);
var
conn:tinifile;
begin
//数据库连接设置。

conn.ini
iniFilePath:=ExtractFilePath(application.ExeName); //获取INI⽂件路径。

if inifilePath[length(inifilePath)]='' then
begin
iniFilePath:=iniFilePath+'conn.ini';
conn:=tinifile.Create(iniFilePath);
end
else
begin
iniFilePath:=iniFilePath+'conn.ini';
conn:=tiniFile.Create(inifilePath);
end;
if not FileExists(iniFilePath) then
begin
application.MessageBox('配置⽂件不存在!','提⽰',mb_OK) ;
APplication.Terminate;
end;
// providerStr:=conn.ReadString('config','provider','');
UserIDStr:=conn.ReadString('config','userID','');
passwordStr:=conn.ReadString('config','password','');
ServerNameStr:=conn.ReadString('config','ServerName','');
dataBaseNameStr:=conn.ReadString('config','DataBaseName','');
if (ServerNameStr='') or (DatabaseNameStr='') then
begin
application.MessageBox('数据库配置不正确，请重新配置!','提⽰',mb_ok);
Application.Terminate;
end;
ADOconn.Close;
ADOconn.ConnectionString:='';
ADOconn.ConnectionString:='Provider=SQLOLEDB.1;User ID='+UserIDstr+';Password='+Passwordstr+ ';Data Source='+ServerNameStr+ ';Initial Catalog='+DatabaseNamestr;
// adoconn.ConnectionString:='Provider='+Providerstr+';User ID='+UserIDstr+';Password='+Passwordstr+ ';Data Source='+DataSourceStr+ ';Initial Catalog='+DatabaseNamestr;
try
adoconn.Connected:=true;
except
application.MessageBox('数据库配置不正确，请重新配置!','提⽰',mb_ok); adoconn.Connected:=false;
application.Terminate;
end;
end;
end.
下⾯是conn.INI⽂件内容：
[config]
UserID=sa
Password=密码
DataSource=服务器名或IP地址
DatabaseName=⽤户数据库名
(完)。